Finding the Fourth Proportional to 292,719.12, 439,107.87 and 79,490.49
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Solution
The fourth proportional to 292,719.12, 439,107.87 and 79,490.49 is: 119,243.66
Step by Step Solution
- Step 1: Write the proportion equation
292,719.12 : 439,107.87 = 79,490.49 : x - Step 2: Convert to fraction form
292,719.12/439,107.87 = 79,490.49/x - Step 3: Cross multiply
292,719.12x = 439,107.87 × 79,490.49 - Step 4: Simplify right side
292,719.12x = 34,904,898,400.59 - Step 5: Solve for x
x = 34,904,898,400.59/292,719.12 - Step 6: Final answer
x = 119,243.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.